Luminescence properties and energy transfer of GdAl3(BO3)4:Ce3+, Tb3+ phosphor |
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| Affiliation: | 1. Department of Physics, Sri Venkateswara University, Tirupati 517502, India;2. Department of Physics, Chadalawada Venkata Subbaiah Engineering College, Tirupati 517506, India;3. Department of Materials Engineering and Ceramics, CICECO, University of Aveiro, Aveiro 3810-193, Portugal;1. Department of Physics, Anna University, M.I.T. Campus, Chennai, Tamil Nadu-600044, India;2. Research and Development Laboratory, Department of Physics, Saveetha Engineering College, Chennai, Tamil Nadu-602105, India;3. Radiological Sefety Division, Indira Gandhi Centre for Atomic Research, Tamil Nadu-603102, India;1. Institute of Physics AS CR, Na Slovance 2, 18221, Prague, Czech Republic;2. A.A. Galkin Donetsk Physico-Technical Institute, R. Luxembourg 72, 83114, Donetsk, Ukraine;3. Institute of Physics, P.A.S., Al. Lotnikow 32/46, 02-668, Warsaw, Poland;4. Center for Magnetic Resonance, Saint-Petersburg State University, Universitetskiy Av. 26, 198504, Saint-Petersburg, Russia |
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| Abstract: | Ce3+ and Tb3+ singly doped and co-doped GdAl3(BO3)4 phosphors were synthesized by solid state reaction. The crystal structure, the luminescent properties, the lifetimes and the temperature-dependent luminescence characteristic of the phosphors were investigated. Through an effective energy transfer, the emission spectra of GdAl3(BO3)4:Ce3+, Tb3+ phosphor contains both a broad band in the range of 330–400 nm originated from Ce3+ ions and a series of sharp peaks at 484, 541, 583, and 623 nm due to Tb3+ ions. The energy transfer from Ce3+ to Tb3+ in GdAl3(BO3)4 host is demonstrated to be phonon assisted nonradiative energy transfer via a dipole–dipole interaction. |
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| Keywords: | Phosphor Luminescence Energy transfer |
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